From a genetic perspective the Siberian tiger and 'practically extinct, being less than 14 copies left. , according to a study published in the journal Mammalian Biology, that the few hundred remaining tigers diversity 'genetic' very low, a sign of poor health.
A team of researchers in Russia, Spain and Germany analyzed the DNA of 15 specimens of Siberian tiger, looking for some specific markers of the abundance of the population genetics, which show how the sample studied is different from their parents. The result 'was that in recent history, probably in the '20s and '40s, there was a' genetic bottleneck ', a period that is' where the tigers were so' few to significantly decrease the amount of 'genes' available ', from which these animals have not been more' included.
a great diversity 'genetic' essential for an animal species, because 'decreases the probability' of disease transmission and rare because 'people with the same genes are more' vulnerable to disease: "The level and 'so' low - experts claim - cast doubt on the possibility 'to save these animals. " (Source - Ansa )
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